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Patented May 22, 1888.

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UNITED STATES PATENT EETEE..

FRANCIS H. PERRY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CHARLES J. VEBB AND MAGGIE BLANCHE PERRY, BOTH OF SAME PLACE.

COAL-SIFTER.

SPECIFICATION forming part of Letters Patent 1\1'0.383,412l dated May 22, 1888.

Application filed April 9, 1887. Serial No.23406. (No model.)

To all whom it may concern:

Be it known that I, FRANCIS H. PERRY, a citizen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Coal and Ash Sifters,of which the followingis a specification.

My invention relates to a class of devices intended for employmentin apartments, that is to say, within doors,for sifting dust and ashes from among coal, and its object is the provision of a compact, inexpensive, and serviceable device for effecting said sifting operation unattended by the escape of dust into the apartment.

To the foregoing ends my invention comprehends such an apparatus as is represented in the accompanying drawings and hereinat'ter described.

In the accompanying drawings, Figure l is a central vertical longitudinal elevation, through a sifter embodying my invention. Fig. 2 is a left hand,and Fig. 3 a righthand end elevati'onal view, of the apparatus represented in Fig. 1. Fig. 4.- is atransverse sectional elevation,in the plane of the dotted line 1-2 of Fig. 1, sight being taken in the direction of the arrows upon said line, and the cover being represented as down upon the top of the box instead ot' raised as in Fig. l. Fig. 5 is a similar view,section being in the plane of the dotted line 3-4C of Fig. l,and sight being taken in the direction of the arrows upon said line.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents a preferably rectangular box casing or receptacle, provided near one end with a transverse vertical diaphragm c which divides it, the said casing,into a charging compartment AX, and what l term a discharging compartment, A. Of these compartments the charging is preferably of four times the cubic area of the discharging. A transverse slot or kindred opening aX in the diaphragm a, about midway of its height, at'- fords communication between the two com` partments. The under portion of the charging compartment is tted with, and whenthe same is in place,completely lled by,a sliding drawer B adapted to be withdrawn at will.

The charging compartment is also fitted with a cover a2 preferably hinged, and co-extensive with the floor area of the compartment.

A sifter C,the same beinga rectangular opentopped box, the floor or bottom of which is composed of a sieve c of any desired mesh, is fitted for longitudinal reciprocation upon ways @within the upper part of the charging cornpartment and above that portion thereof which is occupied by the sliding drawer. The sieve is preferably as broad as the charging compartment but considerably shorter. It rests upon the ways or slides a3 which are conveniently attached longitudinally to the inner side faces of the charging compartment and which are parallel, and it is reciproeated longitudinally by means of a shaking handle cX passing through orifices in the front face of the casing and removably connected in any preferred manner,as for instance by the hook and eye connection c2, with the front end of the sifter.

It is apparent that by means of the projecting portion of the shaking handle the sifter can be shaken or reciprocaed upon its ways. An angular llange c3, extending along three sides of the interior of the charging compartment, forms a chute or hopper serving to direct ashes shaken through the sieve of the sitter into the sliding drawer. The flange is omitted from the outer end of the charging compartment because not required there. It may be attached or supported in any convenient manner, but I prefer to mount it, as to the sides of the compartment, as shown, upon the pieces as, so that the sifter C may run or slide upon the metal of the flange, the pieces as affording a good point of attachment for the fiange. The flange extends across the inner end ofthe charging compartment preferably at such a height as to overhang the slot ax.

The discharging compartment A is provided with an inclined partial partition or deecting board ai, interposed between the slot ctX and a vent ain the outer wall,said detiector IOO breadth of the discharging compartment, and between its sides and the inner faces of the side walls of said discharging compartment are consequently formed openings c5 through which dust passing through the slot LX can if necessary pass to the rear of the partition and into what is in effect the rear compartment of the discharging compartment itself, -such rear compartment being provided with a Vent or ldischarge outlet a of any preferred character and which is provided with a closed lid or valve al.

It will now be apparentthat the discharging compartment is a compartment having but two openings, one the slot through the diaphragm which separates it from the charging compartment, andthe other the vent tothe outer air.

Having now described an apparatus conveniently embodying my invention, its operation will be readily understood. The lid or valve a7 of the discharge outlet a being first opened and the cover of the charging compartment being raised the material which it is desired to siftis deposited into the shaking sieve, in which operation the dust naturally disturbed, instead of rising in a cloud as usual, is, by reason of a temporary current of air from the discharging compartment through the slot cx into the discharging compartment, carried into the discharge compartment and deposited therein. The cover of the casing being then closed, and the lid of the discharging vent likewise closed, the sifter is by its handle reciprocatcd, and the ashes and dust pass through the meshes of the sieve and are deposited in the sliding drawer, and the coal remaining within the sifter is removed by detaching the sifter from its handle and lifting it out bodily.

An accumulation of ashes ordust in the discharging compartment can be removed th rough the vent or discharging outlet.

Having thus described my invention, I claim:-

A coal or ash sii'ter comprising a casing, a 1

diaphragm vhaving an opening through it and dividing said casing into a charging anda discharging compartment, the latter provided with an external vent or discharge opening, a reciprocating sieve and an ash drawer in the receiving compartment, and a deflector in the discharging compartment, substantially as set forth.

FRANCIS H. PERRY. Witnesses:

EZRA E. ADAMS, JOHN BRIsToL, 

